Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
0100151heavily pollutedexcellent71excellent
0000180heavily pollutedexcellent71excellent
2300179heavily pollutedexcellent71excellent
2200206severely pollutedexcellent71excellent
2100207severely pollutedexcellent81excellent
2000190heavily pollutedexcellent91excellent
1900164heavily pollutedexcellent131excellent
1800153heavily pollutedexcellent171excellent
1700104moderately pollutedexcellent101excellent
160084lightly pollutedexcellent101excellent
150068lightly pollutedexcellent81excellent
140055goodexcellent71excellent
130042goodexcellent61excellent
120044goodexcellent81excellent
110054goodexcellent61excellent
100045goodexcellent61excellent
090056goodexcellent71excellent
080054goodexcellent61excellent
070054goodexcellent11excellent
060076lightly pollutedexcellent31excellent
050076lightly pollutedexcellent21excellent
040054goodexcellent21excellent
030039goodexcellent31excellent
020044goodexcellent21excellent